'The Hobbit' Part 3 News: First Official Teaser Trailer For 'The Battle of the Five Armies' Revealed [VIDEO]

The clip maintains a poignant tone set to Enya's music as it gives fans a glimpse of "the defining chapter of the Middle-Earth saga." The teaser picks up toward the end, when the maddened Thorin Oakenshield (Richard Armitage) cries out for war. There are some epic shots of the build up to the war and the armies of all factions seething with aggression.

"From Academy Award®-winning filmmaker Peter Jackson comes The Hobbit: The Battle of the Five Armies, the third in a trilogy of films adapting the enduringly popular masterpiece The Hobbit, by J.R.R. Tolkien.

The Hobbit: The Battle of the Five Armies brings to an epic conclusion the adventures of Bilbo Baggins, Thorin Oakenshield and the Company of Dwarves. Having reclaimed their homeland from the Dragon Smaug, the Company has unwittingly unleashed a deadly force into the world. Enraged, Smaug rains his fiery wrath down upon the defenseless men, women and children of Lake-town.

Obsessed above all else with his reclaimed treasure, Thorin sacrifices friendship and honor to hoard it as Bilbo's frantic attempts to make him see reason drive the Hobbit towards a desperate and dangerous choice. But there are even greater dangers ahead. Unseen by any but the Wizard Gandalf, the great enemy Sauron has sent forth legions of Orcs in a stealth attack upon the Lonely Mountain.

As darkness converges on their escalating conflict, the races of Dwarves, Elves and Men must decide - unite or be destroyed. Bilbo finds himself fighting for his life and the lives of his friends in the epic Battle of the Five Armies, as the future of Middle-earth hangs in the balance."

The Hobbit: The Battle of Five Armies will hit theaters on December 18.